Johnny is right with the CCS100! That is compact and easy to put on most bikes. They stopped making if for yrs and now it is back by popular demand...has been for some time. Buddy of my had one on his Busa and many other bikes I know have room to put them. The servo and the little vacuum can are the only things you have to really worry about for size. That and how to hook them to the throttle linkage. Most people say they are so very smooth running off the vacuum compared to some running off a RPM indicator. IMHO
